CSF Flow Measurement in Syringomyelia
Pierre Brugièresa,b,
Ilana Idy-Perettia,
Clément Iffeneckera,
Fabrice Parkera,
Odile Joliveta,
Michel Hurtha,
André Gastona and
Jacques Bittouna
a From the Centre Inter-Etablissements de Recherche en Résonance Magnétique C.I.E.R.M. (P.B., J.B., O.J., I.I-P.), the Department of Neurosurgery (F.P., M.H.) of Bicêtre Hospital, Paris Sud University, and the Department of Neuroradiology (P.B., A.G.) of Henri Mondor Hospital, Université Paris Val de Marne.
b Address reprint requests to Pierre Brugières, Department of Neuroradiology, Henri Mondor Hospital, 51 ave du Mal de Lattre de Tassigny 94000 Créteil, France.
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FIG 1. Cervical syringomyelia. Axial slice, preoperative velocity imaging (patient 11).
Six images are obtained 30, 100, 150, 200, 300, and 400 ms after the R-wave. Craniocaudal velocities are represented in red and caudocranial velocites in blue. A pulsatile flow is observed as well in the cyst as in the PCSS.
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FIG 2. Normal kinetics of CSF at C2 and C6 levels (volunteer 15).
Caudal flow is represented by negative values. A systolic velocity peak is clearly defined, and it occurs in the first third of the RR cycle duration.
FIG 3. Cystic and pericystic kinetics (patient 1).
A systolic peak is observed in the PCSS and in the cyst, but it occurs sooner in the cyst.
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FIG 4. Pre- and postoperative evolution (patient 13). Pre- and postoperative cyst morphology (A), pre- (B) and postoperative (C), velocity imaging, evolution of cyst (D), and of PCSS velocities (E) are shown. PCCS velocity increases in the postoperative course. In this case with a partial reduction of the cyst volume, cyst velocity distinctly decreases
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